* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #f9f7f4;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #3d7a6f;
  --accent-light: #e8f4f2;
  --border: #e5e2de;
  --radius: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

/* ── Navigation ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(249, 247, 244, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

/* ── Layout ── */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Hero ── */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 6rem 0 4rem;
}

.hero-text h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.hero-text .title {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 1.2rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-text p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.8rem;
  border-radius: 40px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: opacity 0.2s, transform 0.2s;
}

.btn:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  margin-left: 0.8rem;
}

.btn-outline:hover {
  background: var(--accent-light);
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius);
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ── Section ── */
section {
  padding: 4rem 0;
  border-top: 1px solid var(--border);
}

section h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 2rem;
}

.label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

/* ── About cards ── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
}

.card h3 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.95rem;
  color: var(--text);
}

/* ── Skills ── */
.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-tag {
  background: var(--accent-light);
  color: var(--accent);
  padding: 0.4rem 1rem;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ── Works page ── */
.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  margin-top: 2rem;
}

.work-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
}

.work-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.work-card-body {
  padding: 1.4rem;
}

.work-card-body .tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.4rem;
}

.work-card-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.work-card-body p {
  font-size: 0.88rem;
  color: var(--muted);
}

.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-top: 2rem;
}

.hobby-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
}

.hobby-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.hobby-card p {
  padding: 0.8rem;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ── Contact page ── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info p {
  color: var(--muted);
  margin-bottom: 1.6rem;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  margin-bottom: 1.2rem;
}

.contact-item span:first-child {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.contact-item a,
.contact-item span:last-child {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
}

.contact-item a:hover {
  color: var(--accent);
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

label {
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  display: block;
  margin-bottom: 0.4rem;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  transition: border-color 0.2s;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.btn-submit {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.85rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn-submit:hover {
  opacity: 0.88;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
}

/* ── Responsive ── */
@media (max-width: 680px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 3rem 0 2rem;
    gap: 2rem;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-image {
    order: -1;
  }

  .about-grid,
  .hobbies-grid {
    grid-template-columns: 1fr;
  }

  .works-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 1.2rem;
  }
}